Advanced Armament Corporation AR-15 Complete Upper .223 Rem/5.56 NATO 16" Barrel 1:7" Twist KAC URX Rail 51T Blackout Flash Hider Full Auto Bolt Carrier Group Black 102780

Advanced Armament Corporation
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Advanced Armament Corporation is a premier manufacturer of rifles, AR, and accessories. AAC has consistently been on the cutting edge leading the way as innovators in the firearms industry. This particular complete upper assembly is designed to connect directly to your existing AR-15 lower assembly. It features a 16" nitrided barrel with a 1:7" twist rate, and the coveted AAC 51T Blackout flash hider. The 51T ratchet system will allow you to quickly attach and remove any AAC suppressor that is 51T capable.

Specifications and Features:
Advanced Armament Corporation AR-15 Complete Upper Assembly 102780
5.56mm NATO (accepts .223 Remington)
16" Nitrided Barrel
1:7" Twist
AAC 51T Blackout flash hider
Direct impingement gas system
Low profile gas block
Full Auto capable bolt carrier group
Knights Armament URX free float modular quad rail